The way you destroy a police force or an army... is to make it unappealing to the best and the brightest.
You do this by making it impossible to do their jobs. And by prosecuting those who try to. By smothering them with rules of engagement. By destroying their traditions. By lowering standards or changing them admit undesireable or inappropriate people and put them in jobs they are not suited for. By making their leadership political, not skills/merit driven. By substituting 'field-skills' training for political indoctrination (let's try eliminating Control and Restraint training... and substitute 8 hours of training of "Dealing with Same Sex Domestic Violence... or eliminating range to talk about "Single Gender Bathrooms." It's happening.
Then have your sheep protest them, call them baby killers, make them ashamed of their uniforms. Harass them at home. Spit on them in airports and call them 'baby killer.' Pour water on them. Assault people in front of them while telling them to stand down... and while having your Baa-Baa types yell at them. Have the media denigrate them at every turn (you know.... your tame media!) Prosecute soldiers and let terrorists go... destroy police for justified use of force... but never, ever prosecute a single gangbanger for shooting a 6 year old girl on Halloween... You know... that stuff.
Where do the best and brightest go? Not there!
Once you have a hollow shell, you can fill it with the weak, the stupid, the easily led, and your own army of, say, brownshirts or ready-to-go Komsomol-types and your politically-reliable thugs. Who could give a crap about the Constitution or the law or your oath... you just do what you are told for political reasons... never questioning a thing.
Why would anyone want to do that??? What would be the point of doing that to our military and police? What would you be trying to transform????
Humm.... Bueller? Bueller?
Sirhr